Hot flashing a 12V chip on 5V board ?

Discusses BIOS flashers and utilities from Award, AMI and Uniflash
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Posts: 6
Joined: Fri May 02, 2003 5:08 am

First of all, thanks to Rainbow for uniflash.

Now, according to my question, can I hot flash 12v chips on a 5v board using the adapter of Rainbow's page?

If can be done, is it safe?

The UniFlasher
Posts: 3122
Joined: Wed Mar 20, 2002 4:16 pm
Location: Slovakia

I've done it a couple of times. You must make sure that the pin which has 12V on it never touches the motherboard socket. Then it's safe.
First insert the chip in the adapter (the correct way), then insert the adapter in motherboard socket (the correct way), then run UniFlash, save the chip contents on HDD and look if it looks like a BIOS (to check if all address and data pins are really connected). Then connect the 12V and run UniFlash again - it should detect the chip correctly now. Flash it (almost always including bootblock), power down and return the chips back where they should be.
Patched and tested BIOSes are at
UniFlash - Flash anything anywhere
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